Grissom and his team discover several victims who have green blood, leading them to the conclusion that their deaths are somehow connected.

Addison visits Seattle Grace because they need skills that only she has. Rebecca/Ava returns with news for Alex. Meredith and Derek's clinical trial experiences one or two developments.

Sam and Dean search for a Crocotta that uses the phone and computer as a means to communicate with people. Its goal is to get people to commit suicide and take their soul. Dean gets some news from an unlikely source about a demon holding the contract to his soul.

Tonight Stephen welcomes social critic and author of World Made by Hand, James Kunstler.

Episode info coming soon ..

After Stanley snaps at Michael during a meeting, Toby tries to convince him that Stanley needs to be dealt with. Dwight buys Andy's car. Pam's forced to wear old glasses instead of her contacts.